炸药水下爆炸能量输出特性试验研究

Experimental Research on Underwater Explosion Energy Output of Explosive

为了解炸药水中爆炸能量的输出特性,特别是冲击波能随距离的衰减规律,对有效比冲能进行了研究。经过理论推导发现,传统的有效比冲能计算公式仍然满足相似律。TNT炸药水下爆炸试验结果表明,炸药的有效比冲能、比气泡能和总能量的测量结果与经验公式计算结果吻合较好。通过对试验结果进行分析,拟合得到了有效比冲能随距离变化的趋势线。对比经验公式结果,发现在小药量试验中冲击波能随距离的衰减更明显。

In order to understand the energy output characteristics for underwater explosion of explo- sive, especially the decay law of shock wave energy along with the distance, the efficient shock wave energy per unit mass was researched. In traditional empirical formulas, it satisfies the similarity law. The underwater explosion experimental results show that the shock wave energy, bubble energy and total energy per unit mass of TNT explosive are all in agreement with the empirical results. By analy- zing the experimental results, the trend line of the efficient shock wave energy per unit mass decayed with the scale distance was obtained. Compared with the empirical results, it is found that the efficient shock wave energy decays more rapidly in small charge experiment.